Structure of DSM-5 and ICD-11 personality domains in Iranian community sample

Verification of five-factor models and reference scores for personality dysfunction and trait domains of the Personality Assessment Questionnaire for ICD-11 (PAQ-11), revised version

A brief self-reported measure of the Personality Assessment Questionnaire for the 11th edition of the World Health Organization's International Classification of Disease (ICD-11) (PAQ-11) was developed to evaluate ICD-11 personality traits. The aim of this study was to investigate the validity of the revised PAQ-11 version (PAQ-11R) with an additional item in the Dissociality domain and thresholds for the severity of personality dysfunction and domains. Study 1 examined the construct validity of the PAQ-11R in 192 university students in Korea. Study 2 estimated tentative reference scores of personality dysfunction and domains of the PAQ-11R in 91 patients in Korea. In study 1, the PAQ-11R had a five-factor structure and the revised Dissociality scale had better convergent and discriminant validities than the previous version. In study 2, the receiver operating characteristic (ROC) curve of the PAQ-11R identified a threshold score of 35. Reference scores for domains were estimated as 15 for Negative Affectivity, 10 for Detachment, 8 for Anankastia, and 5 each for Disinhibition and Dissociality. These scores contribute to severity of personality disturbance but remain qualifiers only; they are not diagnostic. The results suggest that the PAQ-11R is useful as a quick assessment tool for identifying the domains of personality dysfunction in clinical practice in harmony with the ICD-11 guidelines.

The structure of pathological personality traits and temperament in a Persian community sample

The present study examined the extent to which the currently established factor structure of the Personality Inventory for DSM-5 (PID-5; Krueger et al., 2013) generalizes to a large Persian community sample, as well as relations between the resulting PID-5 factors and two temperament measures. Cross-sectional data came from 946 adults (65% female) from western Iran. With the use of exploratory structural equation modeling (ESEM) with target rotation, we found factor loadings that showed fairly similar patterns to those found in two previous meta-analytic PID-5 studies with predominantly North American and European samples (Watters & Bagby, 2018; Somma et al., 2019). Despite slight differences in each of the target rotations, there were moderate congruence coefficients (~0.85) between loadings for the five PID-5 domains, with the weakest evidence supporting the Disinhibition factor. The resulting PID-5 factors showed meaningful associations with temperament domains assessed via the Temperament and Character Inventory (TCI; Cloninger, 1994) and Temperament Evaluation of Memphis, Pisa, Paris and San Diego-Autoquestionnaire (TEMPS-A; Akiskal et al., 2005). Overall, our findings suggest that the documented structure of personality pathology assessed by the PID-5 generalizes somewhat to this sample of Persian participants, and pathological personality traits show important overlap with temperament, although these constructs are meaningfully distinct.

The sensitivity of the ICD-11 trait model to the symptoms of clinical disorders in young adults

Hierarchical psychopathology contributes to providing a broader picture of the links between emerging personality structures such as the DSM-5/ICD-11 trait models and clinical disorders. The present study aimed to predict the specific and general clinical symptoms by the less studied constructs of the ICD-11 model (negative affectivity, detachment, dissociality, disinhibition, and anankastia). Data from 642 young adults from Iran (63% female, 18-34 years) were collected by three mental symptom scales and the Personality Inventory for DSM-5 (PID-5), which was recently used to harmonize the constructs of the DSM-5 and ICD-11 trait models. Multiple linear regressions showed that the ICD-11 model significantly predicted both the specific clinical symptoms (ranging from R2 = 0.15 to 0.40) and the general factor of clinical symptoms extracted by exploratory factor analysis (R2 = 0.40, all p < 0.001). Negative affectivity was the strongest construct correlated with both the specific symptoms (ranging from β = 0.36 to 0.69) and the general symptom factor (β = 0.59, all p < 0.001). Because the ICD-11 trait model is a practical structure related to the clinical psychopathology in young adults, screening for maladaptive traits can help clinicians in case formulation for diagnosis and treatment.

Replicability of the five-factor structure of DSM-5 and ICD-11 trait systems and their associations with binge eating and bipolar spectrum psychopathology

Since the research on contemporary personality models-and psychopathology-mainly originate from the Western world, we aimed to test the factorial structure of two trait systems assessed with the Personality Inventory for DSM-5 (PID-5) in a non-Western sample and to compare the extracted models' relative associations with binge eating disorder (BED) and bipolar spectrum disorder (BSD) symptoms. A community sample (N = 516; 72% female) was administered the PID-5, which can operationalize both the DSM-5 and ICD-11 systems. The factor structures of both systems were tested using exploratory structural equation modeling (ESEM). The congruence coefficients of all factor loadings with international studies were calculated. The Binge Eating Scale (BES), Bipolar Spectrum Diagnostic Scale (BSDS), and Hypomania Checklist-32-Revised (HCL-32) were used to measure the criterion variables. Linear regression models were used for comparing the DSM-5 and ICD-11 systems in predicting the BED and BSD. The findings supported five-factor solutions for both trait systems. Both systems significantly predicted dimensional measures of both BED and BSD (all p < 0.001). The present findings support an acceptable five-factor structure for both personality systems in the non-Western sample. Different algorithms of maladaptive domains on both systems are related to binge eating and bipolar spectrum psychopathology.

Practical implications of ICD-11 personality disorder classifications

Personality disorders (PDs) are associated with an inferior quality of life, poor health, and premature mortality, leading to heavy clinical, familial, and societal burdens. The International Classification of Diseases-11 (ICD-11) makes a thorough, dramatic paradigm shift from the categorical to dimensional diagnosis of PD and expands the application into adolescence. We have reviewed the recent literature on practical implications, and severity and trait measures of ICD-11 defined PDs, by comparing with the alternative model of personality disorders in the fifth edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-5), by mentioning the relevance in forensic and social concerns, and by referencing the developmental implication of life span, especially in adolescence. Study results strongly support the dimensional utility of ICD-11 PD diagnosis and application in adolescence which warrants early detection and intervention. More evidence-based research is needed along the ICD-11 PD application, such as its social relevance, measurement simplification, and longitudinal design of lifespan observation and treatment.

Clinical cut scores for the Persian version of the personality inventory for DSM-5

BACKGROUND

The cut points of psychological tools to diagnose clinical conditions are not universal and depend on the region and prevalence of the disorder. Thus, we aimed to identify the cutoff points of the Persian original version of the personality inventory for DSM-5 (PID-5; 220 items) that would optimally distinguish nonclinical from clinical groups.

METHODS

Both nonclinical (N = 634, 73% female, 34.0 ± 10.8 years) and clinical (N = 454, 29% female, 29.5 ± 7.4 years) samples from the West of Iran participated in the study. Data were analyzed using receiver operating characteristic (ROC) and Youden's index was used to determine the cutoff scores across the PID-5 domains and facets. The means and standard deviations of both the clinical male and female were compared with the nonclinical group using Cohen's d and independent t-tests.

RESULTS

All the PID-5 algorithms and facets significantly distinguished clinical from nonclinical samples with some unique findings for male and female samples. The mean score of all the PID-5 algorithms and facets in the clinical male and female samples were respectively 1.0-2.0 SD and 0.5-1.0 SD above the mean for the nonclinical counterparts. A score higher than 1.5 on ranging from 0 to 3 in each domain or facet indicated clinical status.

CONCLUSION

Raw cutting scores throughout the PID-5 algorithms can be well used to diagnose any pathology of personality and the severity of the disorder in clinical patients. The cut scores provide a useful tool for the clinical use of the original version of PID-5 in Iran.

Construct and criterion validity of the HiTOP spectra to predict dimensional and categorical somatization in a large non-western sample

The Hierarchical Taxonomy of Psychopathology (HiTOP) is a phenotypic data-driven framework for the classification of psychopathology. We tested the construct and criterion validity of the HiTOP spectra measured by the Personality Inventory for DSM-5 (PID-5) using exploratory structural equation modeling (ESEM) and hierarchical regressions both to predict somatic symptom and related disorders (SSRD) and a somatization factor. The case-control study used hierarchical logistic regressions to distinguish 257 cases with SSRD from 1007 healthy controls by both the maladaptive and the temperament factors. The extracted factors were also used in hierarchical linear regressions to predict the dimensional somatization factor. The seven temperament factors explained more variance above and beyond the five maladaptive factors when predicting SSRD (pseudo R2 = 0.169 to 0.266 versus 0.125 to 0.196; change in pseudo R2 = 0.055 to 0.087 versus 0.011 to 0.017). The temperament factors also explained more variance above and beyond the maladaptive factors when predicting the somatization factor (R2 = 0.392 versus 0.269; change in R2 = 0.146 versus 0.023). Although the HiTOP spectra measured by PID-5 are significant structures related to the categorical and dimensional measurements of somatoform, our findings highlight potential problems with both the construct and criterion validity of the HiTOP spectra.

Examining the construct validity of the Personality Assessment Questionnaire for ICD-11 (PAQ-11) personality trait domains in a community sample

The ICD-11 has a new diagnostic system for personality disorder, which includes five optional trait specifiers to characterize the diagnosed pathology. The current study evaluated the internal structure and construct validity of the Personality Assessment Questionnaire for ICD-11 (PAQ-11) personality trait domains in a US population-representative community sample. An exploratory factor analysis revealed the support for a four-factor model underlying the 17 PAQ-11 items, reflecting four of the five ICD-11 trait domains (Negative Affectivity, Detachment, Disinhibition and Anankastia). Moreover, correlation analyses revealed that the PAQ-11 domain scale scores were associated, as expected, with their counterparts from two other ICD-11 trait domain measures, as well as with traditional personality disorder scores. More broadly, the results raised questions about the structural integrity of the Dissociality domain scale, and the discriminant validity of the Disinhibition and Anankastia scales. The overall conclusion was nevertheless promising with respect to the PAQ-11 serving as a brief screening measure for the ICD-11 trait domains.

Dimensional models of personality disorders: Challenges and opportunities

Categorical models of personality disorders have been beneficial throughout psychiatric history, providing a mechanism for organizing and communicating research and treatment. However, the view that individuals with personality disorders are qualitatively distinct from the general population is no longer tenable. This perspective has amassed steady criticism, ranging from inconsequential to irreconcilable. In response, stronger evidence has been accumulated in support of a dimensional perspective that unifies normal and pathological personality on underlying trait continua. Contemporary nosology has largely shifted toward this dimensional perspective, yet broader adoption within public lexicon and routine clinical practice appears slow. This review focuses on challenges and the related opportunities of moving toward dimensional models in personality disorder research and practice. First, we highlight the need for ongoing development of a broader array of measurement methods, ideally facilitating multimethod assessments that reduce biases associated with any single methodology. These efforts should also include measurement across both poles of each trait, intensive longitudinal studies, and more deeply considering social desirability. Second, wider communication and training in dimensional approaches is needed for individuals working in mental health. This will require clear demonstrations of incremental treatment efficacy and structured public health rebates. Third, we should embrace cultural and geographic diversity, and investigate how unifying humanity may reduce the stigma and shame currently generated by arbitrarily labeling an individual's personality as normal or abnormal. This review aims to organize ongoing research efforts toward broader and routine usage of dimensional perspectives within research and clinical spaces.

Validation of the Personality Inventory for DSM-5–Brief Form (PID-5-BF) with Iranian University Students and Clinical Samples: Factor Structure, Measurement Invariance, and Convergent, Discriminant, and Known-Groups Validity

The Personality Inventory for DSM-5, Brief Form (PID-5-BF) was developed to assess DSM-5's Alternative Trait Model for Diagnosing Personality Disorders (AMPD). This study aimed to examine the factor structure, internal consistency, measurement invariance, and convergent, discriminant, and known-group validity of the Persian PID-5-BF with 941 university students (aged 18-67, M age= 28.36, SD = 9.09, 39.1% males) and 178 male from a clinical (aged 18-60, M age= 33.77, SD = 10.60) sample in Iran. Confirmatory factor analyses supported the five-factor model in both groups, being fully and partially invariant across gender and study groups, respectively. PID-5-BF subscales were internally consistent, yielded expected associations with other personality variables, and differentiated the student sample from the clinical group, supporting the measure's convergent, discriminant, and known-group validity. Our results indicated that the PID-5-BF holds promise as a screening measure of dimensional maladaptive personality traits in Iranian students and clinical samples.

Clinical Implications of ICD-11 for Diagnosing and Treating Personality Disorders

PURPOSE OF REVIEW

The International Classification of Diseases 11th revision (ICD-11) introduced a new approach to personality disorders and related traits. This paper reviews recent literature on the assessment of ICD-11 personality disorders and implications for clinical diagnosis, decision-making, and treatment.

RECENT FINDINGS

We reviewed findings on two measures developed for the ICD-11 model of personality dysfunction and six inventories for the ICD-11 trait specifiers. The psychometric qualities of these tools are promising, and they allow for both rapid screening and fine-grained assessment. Implications for clinical diagnosis and treatment of personality disorders are reviewed including utility for forensic practice. Based on evidence and our experience, we provide some recommendations for severity- and trait-informed interventions. Initial evidence supports the available instruments for assessing ICD-11 personality disorders. More research is needed including development of clinician-rating forms and diagnostic interviews as well as treatment protocols and trials based on the new ICD-11 classification.

Psychometric study of the brazilian version of the personality inventory for DSM-5-paper-and-pencil version

The Personality Inventory for DSM-5 - Self Reported Form (PID-5-SRF) operationalizes Criterion B of the personality alternative model of DSM-5 Section III and has already been cross-culturally adapted to many countries. The objective is to present evidence of validity and reliability of the Brazilian version of PID-5 (pencil-and-paper) in a Brazilian community sample. The sample was composed of 730 individuals from the general population [67.8% women, aged 33.84 (SD = ±15.2), 69.5% ≥ 12 years of schooling]. The participants were recruited in academic, organizational, healthcare, and business facilities in three Brazilian states. The snowball method was used. The PID-5 Brazilian version and the Revised NEO-Five Factor Inventory (NEO-FFI-R) were individually applied, and the retest was applied 30 days after. Satisfactory internal consistency (facets α ≥0.51; domains α ≥0.82) and test-retest reliability (facets ICC ≥ 0.45; domains ICC ≥0.76) were found, but a floor effect was verified in 97.7% of the items. Regarding convergent validity, strong correlations were found between the PID-5 and the NEO-FFI-R domains (r = -0.44 to 0.70). Ten facets did not fit the unidemensional structure. Confirmatory Factor Analyses did not present adequate goodness of fit, and Exploratory Analyses indicated that a five-factor model is more appropriate, though it presents some peculiarities concerning the original model. PID-5 also presented satisfactory goodness of fit to the personality hierarchical model. Generally, the instrument's psychometric indicators favor its use in the Brazilian context. However, some aspects demand attention, and more specific studies should be conducted to verify the impact of reverse-scored items, floor effect, and peculiarities of its internal structure (some facets' multidimensionality and interstitiality) concerning the original model.

Cross-cultural Study of the Personality Inventory for the DSM-5 (PID-5) across the Portuguese and the United Arab Emirates (UAE) Community and Clinical Populations

Aims

The present paper focused on compare the PID-5 mean score levels across two matched community and clinical samples of Portugal and the UAE.

Background

The generalizability and universality of the Alternative Model of Personality Disorders has been thoroughly studied through the Personality Inventory for DSM-5 (PID-5) across countries and languages. However, studies comparing Western and Middle Eastern countries are still limited, in particular those who assess the PID-5 measurement invariance.

Objectives

We examined measurement invariance of the PID-5 scales across matched Emirati and Portuguese clinical and nonclinical groups, as well as compare and contrast the PID-5 mean score levels across both countries and samples.

Methods

The Arabic and the Portuguese versions of the PID-5 was administered to Emirati community participants (N = 300, 80% women and 20% men, M_age = 27.95) which were matched with Portuguese community participants (N = 300, 80.3% women and 19.7% men, M_age = 28.96), as well as clinical participants of the UAE (N = 150, 61.3% women and 38.7% men, M_age = 31.29) and Portugal (N = 150, 52% men and 48% women, M_age = 44.97). We examined measurement invariance through an unrestricted Factor Analysis based program, and mean scores levels were compared and analyzed.

Results

Our findings supported the PID-5 measurement invariance across the Emirati and Portuguese clinical samples pointing to the universality and generalizability of the Alternative Model of Personality Disorders. The Emirati psychiatric sample exhibited somehow higher results than the Portuguese psychiatric participants, albeit the small effect size for most of the PID-5 scales.

Conclusion

Further research is needed to examine the applicability of the PID-5 across non-clinical representative samples of Portugal and the UAE, and other Middle Eastern countries.

The psychometric properties of the Hungarian version of the Personality Inventory for DSM-5 in a clinical and a community sample

The alternative dimensional model for personality disorders characterizes the individual on pathological personality traits, which can be measured by the Personality Inventory for DSM-5 (PID-5). Our study focused on the psychometric properties of the Hungarian version of PID-5 in 239 psychiatric patients and 226 non-clinical participants. The distribution of gender, age, and educational level were the same in the two samples. In the clinical sample, we examined the assumed unidimensionality of the 25 facets. The results of the exploratory factor analysis for five factors indicated the supposed five-factor structure. The convergent validity was studied by correlations with Big Five Inventory. The PID-5 domains showed moderate or strong correlation with the domains of Big Five except for Psychoticism. The comparison of the clinical and non-clinical samples revealed that psychiatric patients had a higher score on all pathological facets and domains, except for the domain of Antagonism with all its related facets, and the facet of Risk Taking. As a whole, we recommend the use of the Hungarian version of the PID-5 in research and clinical practice.

ADHD overdiagnosis and the role of patient gender among Iranian psychiatrists

BACKGROUND

Regarding the controversy about the overdiagnosis of Attention Deficit/Hyperactivity Disorder (ADHD) in children and adolescents there are two main directions addressed as issue of age bias and issue of gender bias. In this relation, replication of findings demonstrating significant overdiagnosis is of importance which make the systematic evaluation of such occurrence necessary.

OBJECTIVE

The seminal study by Bruchmüller, Margraf & Schneider, 2012 is replicated here, although in a different cultural context, in this case Iran, as ADHS might be perceived differently there. We assessed both gender bias and the impact of potential overdiagnosis on treatment recommendations.

METHODS

A total of 344 licensed Iranian psychiatrists (mean age = 45.17, SD = 9.50) participated in this study. Each psychiatrist received a cover letter that introduced the study as well as a case vignette. Overall, there are eight different cases, one child with ADHD and three non-ADHD children, for both a boy (Ali) and a girl (Sara). Participants also received a questionnaire requesting their particular diagnosis, treatment recommendation and the therapist's sociodemographic information. Chi square tests and multiple logistic regression were applied for data analyses.

RESULTS

Overdiagnosis occurred in both girl and boy children, although overdiagnosis was 2.45 more likely in boys than in girls (p < 0.01). With respect to the psychiatrist's gender, we detected no difference between males or females, as both overdiagnosed ADHD in boys (p_female < 0.01 and p_male < 0.01). Furthermore, ADHD overdiagnosis had a direct impact on medication prescription (p < 0.01).

CONCLUSION

This study suggests that diagnosticians should strictly adhere to diagnostic criteria to minimize diagnostic error.

The Personality Inventory for DSM-5: Psychometric Evidence of Validity and Reliability-Updates

OBJECTIVE

To perform a systematic review of the literature on the psychometric characteristics of different versions of the Personality Inventory for the Diagnostic and Statistical Manual of Mental Disorders, fifth edition (PID-5) and to integrate the current findings with those of previous reviews by Al Dajani and colleagues (2015) and Watters and Bagby (2018).

METHODS

This study was conducted according to the Preferred Reporting Items for Systematic Reviews and Meta-analyses protocol. PubMed, PsycINFO, SciELO, Web of Science, and LILACS were searched using two keywords: personality AND DSM-5. Studies published from 2015 to 2018 were included.

RESULTS

Sixty-four new studies were evaluated. The PID-5-self-report form (SRF) was concluded to have a factorial structure consisting of five factors and 25 facets, as well as excellent indicators of internal consistency, test-retest reliability, and convergent validity with different personality instruments and with other clinical constructs. The form also has predictive and discriminative potential, warranting further exploration in studies with samples of personality disorders in relation to different parameters and not only the diagnostic algorithm of DSM-5 Section III. The brief and informant versions, although less studied, also showed good psychometric indicators, comparable to the original version.

CONCLUSIONS

The PID-5 showed psychometric suitability for use in different cultures and contexts. The form's use in clinical practice and as a means of operationalizing the diagnostic evaluation of the DSM-5 dimensional model is promising and should be encouraged.

Preliminary Scales for ICD-11 Personality Disorder: Self and Interpersonal Dysfunction Plus Five Personality Disorder Trait Domains

The ICD-11 personality disorder model is the first fully dimensional assessment of personality pathology. It consists of a personality disorder (PD) dysfunction-severity dimension, which encompasses both self- and interpersonal dysfunction, and six optional qualifiers for five prominent personality traits-Negative Affectivity (NA), Detachment (DET), Dissociality (DSL), Disinhibition (DSN), and Anankastia (ANK)-plus a borderline pattern that is defined by the criteria of DSM-IV borderline PD. This article reports on the development of a new self-report measure to assess self- and interpersonal dysfunction and the five trait qualifiers. It is the first comprehensive measure of the ICD-11 PD model in that (a) it is the only one to include both PD dysfunction-severity as well as trait scales and because (b) it is based on the Clinical Description and Diagnostic Guidelines, which are more detailed than the "statistical" model description that is currently on the ICD-11 website. The authors wrote 992 items and then reduced the pool to 300 items by eliminating redundancy and selecting the consensus best few items for each subconstruct. Data were collected using an online sample of 383 Prolific workers. Using exploratory factor analysis, seven domain scales were developed, each of which contained two to four scales assessing components of the domain. These preliminary scales' psychometrics were excellent, as were the domains' and their components' convergent and discriminant validity, with a few generally minor exceptions. Structural analyses at the component level revealed a three-factor structure consisting of two moderately correlated Internalizing factors, one centered on Self Dysfunction with two NA components and a DSN component (Distractibility) and the other on Interpersonal Dysfunction with DET and ANK components; as well as an Externalizing factor with DSL and a DSN component (Reckless Impulsivity) that was uncorrelated with the other two factors. Two aspects of the results in particular are striking: (1) ANK was not the opposite end of a DSN dimension, but rather contributed to an Internalizing Interpersonal Dysfunction dimension and (2) DSN had both an Internalizing and an Externalizing component. Implications of the findings and study limitations are discussed.

The ICD-11 Personality Disorder Trait Model Fits the Kurdish Population Better Than the DSM-5 Trait Model

The ICD-11 Classification of Personality Disorders and the DSM-5 Alternative Model of Personality Disorders (AMPD) operate with trait domains that contribute to the individual expression of personality disturbance (i.e., negative affectivity, detachment, dissociality, disinhibition, anankastia, and psychoticism). To date, these trait frameworks have not been investigated sufficiently in Middle Eastern cultures. Thus, the present study explored the structure of the ICD-11 and AMPD personality disorder (PD) trait domains in a large mixed sample from the Kurdistan zone of Iran. The ICD-11 and AMPD trait domains were operationalized using empirically supported algorithms for the Personality Inventory for DSM-5 (PID-5). The PID-5 was administered to a large mixed sample (N = 3,196) composed of 2,678 community and 518 clinical participants. Structural validity was investigated using Exploratory Factor Analysis (EFA), whereas differential construct validity was explored by comparing clinical and community scores. Model fit and the expected factor structure were deemed appropriate for the ICD-11 trait model, but less adequate for the DSM-5 trait model (i.e., disinhibition did not emerge as a separate factor). All domain and facet scores showed significant differences between clinical and community subsamples with moderate to large effects, mostly for disinhibition and dissociality/antagonism while least for anankastia. The findings of the present study may suggest that the ICD-11 trait model is more cross-culturally fitting than the DSM-5 AMPD trait model, at least with respect to a large mixed sample from the region of Kurdistan. Accordingly, there is evidence for using PID-5 data for WHO ICD-11 purposes in this part of the World.

Psychometric Properties of the Personality Inventory for DSM-5 in a Romanian Community Sample

The Personality Inventory for DSM-5 (PID-5) evaluates 25 maladaptive personality traits proposed in the Alternative Model of Personality Disorders. The questionnaire has been extensively investigated and validated in several languages. The current research sought to examine the psychometric properties of the instrument in a sample of nonclinical Romanian participants (N = 1276). Results indicated excellent internal consistency for the domain level, and very good reliability for the facet level. The assumption of unidimensionality was supported at both the domain and facet levels, apart from Risk Taking. Two domain scoring methods were also compared. One of them takes into consideration all the 25 lower order facets, whereas the other uses only 15 facets. Results show that mean differences across the two scoring methods were small, except for Disinhibition. Moreover, confirmatory factor analyses revealed slightly better fit indices for the model which uses 15 facets only. Lastly, the hierarchical structure of maladaptive personality traits was explored. Results are discussed in the light of previous literature.

Personality inventory for DSM-5 brief form(PID-5-BF) in Chinese students and patients: evaluating the five-factor model and a culturally informed six-factor model

BACKGROUND

The Personality Inventory for DSM-5 Brief Form (PID-5-BF) is a 25-item measuring tool evaluating maladaptive personality traits for the diagnosis of personality disorders(PDs). As a promising scale, its impressive psychometric properties have been verified in some countries, however, there have been no studies about the utility of the PID-5-BF in Chinese settings. The current study aimed to explore the maladaptive personality factor model which was culturally adapted to China and to examine psychometric properties of the PID-5-BF among Chinese undergraduate students and clinical patients.

METHODS

Seven thousand one hundred fifty-five undergraduate students and 451 clinical patients completed the Chinese version of the PID-5-BF. Two hundered twenty-eight students were chosen randomly for test-retest reliability at a 4-week interval. Exploratory factor analysis (EFA) and confirmatory factor analysis (CFA) were conducted to discover the most suitable factor structure in China, measurement invariance(MI), internal consistency, and external validity were also calculated.

RESULTS

The theoretical five-factor model was acceptable, but the exploratory six-factor model was more applicable in both samples (Undergraduate sample: CFI = 0.905, TLI = 0.888, RMSEA = 0.044, SRMR = 0.039; Clinical sample: CFI = 0.904, TLI = 0.886, RMSEA = 0.047, SRMR = 0.060). In the Chinese six-factor model, the Negative Affect domain was divided into two factors and the new factor was named "Interpersonal Relationships", which was in line with the Big-Six Personality model in Chinese. Measurement invariance across non-clinical and clinical sample was established (configural, weak, strong MI, and partial strict MI). Aside from acceptable internal consistency (Undergraduate sample: alpha = 0.84, MIC = 0.21; Clinical sample: alpha = 0.86, MIC = 0.19) and test-retest reliability(0.73), the correlation between the 25-item PID-5-BF and the 220-item PID-5 was significant(p < 0.01). The six PDs measured by Personality diagnostic questionnaire-4+ (PDQ-4+) were associated with and predicted by expected domains of PID-5-BF.

CONCLUSIONS

Both the theoretical five-factor model and the exploratory six-factor model of the PID-5-BF were acceptable to the Chinese population. The five-factor model could allow for comparison and integration with other work on the original theoretical model. However, the Chinese six-factor structure may be more culturally informed in East Asian settings. In sum, the PID-5-BF is a convenient and useful screening tool for personality disorders.

Personality Assessment Questionnaire for ICD-11 personality trait domains: Development and testing

BACKGROUND

We aimed to develop a questionnaire suitable for the assessment of trait domains in the forthcoming International Classification of Diseases 11th Revision (ICD-11). This questionnaire, the Personality Assessment Questionnaire for ICD-11 (PAQ-11) personality trait domains, was intended as a short and reliable self-report measure.

METHOD

The initial items were derived from the relevant traits of an established version of the Personality Assessment Schedule. In Phase 1, item selection and scale construction proceeded iteratively using data from 334 female university students and 75 psychiatric patients (combined N = 409) in Korea. In Phase 2, a validation study of the scale was conducted in a subset of the sample from Phase 1, who were deemed to be at high risk of personality disorders (N = 210).

RESULTS

Exploratory and confirmatory factor analyses of the Personality Assessment Schedule items created a 17-item scale. This scale, PAQ-11, demonstrated adequate convergent and discriminant validity with the five-factor model, the Diagnostic and Statistical Manual of Mental Disorders Fifth Edition traits model and emotional difficulties. The results were consistent with its underlying theoretical structure.

CONCLUSIONS

The PAQ-11 appears to be potentially promising in terms of clinical utility to assess the five domains of ICD-11 personality disorders. More research must be conducted in other cultural backgrounds with gender-balanced populations. © 2020 John Wiley & Sons, Ltd.

ICD-11 Personality Disorders: Utility and Implications of the New Model

The ICD-11 classification of personality disorders represents a paradigm shift in diagnosis. This was felt necessary because previous personality disorder classifications had major problems. These included unnecessary complexity, inconsistency with data on normal personality traits, and minimal consideration of severity despite this being shown to be the major predictor of outcome. The ICD-11 classification abolishes all categories of personality disorder except for a general description of personality disorder. This diagnosis can be further specified as "mild," "moderate," or "severe." Patient behavior can be described using one or more of five personality trait domains; negative affectivity, dissociality, anankastia, detachment, and disinhibition. Clinicians may also specify a borderline pattern qualifier. The ICD-11 shows considerable alignment with the DSM-5 Alternative Model for Personality Disorders. Early evidence around the reliability and validity of the new model appear promising, although at present there is still limited specific evidence due to the model being so recently finalized. However, for the model to be successful, it needs to be embraced by clinicians and used widely in normal clinical practice.

Personality Inventory for DSM-5 in China: Evaluation of DSM-5 and ICD-11 Trait Structure and Continuity With Personality Disorder Types

The Personality Inventory for the DSM-5 (PID-5) is an established tool for assessing personality disorder (PD) traits that was developed based on section III of the DSM-5. It is composed of 220 items, organized into 25 facets, which are distributed among five domains. The psychometric properties of the Chinese version of the PID-5 remain to be demonstrated. Two samples were embodied in this study that included 3,550 undergraduates and 406 clinical patients. To probe the structure of the PID-5, parallel analyses were conducted to explore the unidimensionality of its 25 facets and a series of confirmatory factor analyses (CFAs) were carried out to confirm the 25 lower-order facets and their distribution among five higher-order domains. Then, the PID-5 was employed to measure the DSM-5 and ICD-11 trait models and to explore the relationship of DSM-IV categorical PDs with DSM-5 and ICD-11 personality traits. Correlation and regression analyses were conducted to probe how well DSM-IV categorical PDs correspond with maladaptive personality traits specified in the DSM-5 and five ICD-11 domains. The respective average internal reliability coefficients of the 25 facets obtained for undergraduate and clinical patient samples were 0.76 and 0.81, those obtained for the five DSM-5 domains were 0.89 and 0.91, and those obtained for the five ICD-11 domains were 0.87 and 0.89. Serial CFAs confirmed the rationality of the PID-5's lower-order 25-facet structure and higher-order five-domain structure in both samples. Correlation and regression analyses showed that DSM-5 specified traits explain the variance in PD presentation with a manifold stronger correlation (R ² = 0.24-0.44) than non-specified traits (R ² = 0.04-0.12). Overall, the PID-5 was shown to be a reliable, stable, and structurally valid assessment tool that captures pathological personality traits related to DSM-5 and ICD-11 PDs.

Obsessive-Compulsive (Anankastic) Personality Disorder in the ICD-11: A Scoping Review

Introduction: With the shift from a categorical to a dimensional model, ICD-11 has made substantial changes to the diagnosis of personality disorders (PDs), including obsessive-compulsive (anankastic) personality disorder (OCPD). The ICD-11 PD model proposes a single diagnosis of PD with specifications regarding severity and domains. However, a systematic overview of ICD-11 anankastia is lacking. In this review we address the reformulation of the OCPD diagnosis in the ICD-11, and draw comparisons with the DSM-5, with a particular focus on diagnostic validity and clinical utility. We hypothesized that the ICD-11 PD model provides a diagnostically valid and clinically useful approach to OCPD, with specific emphasis on the anankastia domain as the primary trait qualifier. Methods: Literature published from 2010 to 2020 was systematically searched using the PubMed/MEDLINE, PsychInfo, Cochrane, and Web of Sciences search engines, in order to find all articles that addressed ICD-11 anankastia. Relevant articles were collated, and themes of these articles subsequently extracted. Results: Out of the 264 publications identified, 19 articles were included in this review. Four themes were identified, namely (a) overlap of DSM-5 OCPD with the ICD-11 PD model, (b) the factorial structure of the ICD-11 PD model with respect to the anankastia domain, (c) the clinical utility of the ICD-11 PD model, and (d) comparison of the ICD-11 PD model of anankastia with the DSM-5 alternative model for OCPD. Conclusions: The ICD-11 anankastia domain overlaps with DSM-5 OCPD traits, and the factor analyses of the ICD-11 PD model further support the diagnostic validity of this domain. There is some support for the clinical utility of the ICD-11 PD model of anankastia but further studies are needed, including of its relationship to obsessive-compulsive and related disorders.

Personality Traits in the International Classification of Diseases 11th Revision (ICD-11)

PURPOSE OF REVIEW

The International Classification of Diseases 11th Revision (ICD-11) officially adopted a dimensional system of personality disorder that was a paradigm shift for the classification of personality disorders. The purpose of this article is to review the growing amount of research on one component of that system - the personality trait domain model. Importantly, several self-report measures have been developed to measure the ICD-11 domains and have been subjected to initial validation through examination of their factor structure, multimethod use, convergent and discriminant validity with other prominent dimensional personality models (such as the Five-Factor Model), and criterion validity for important life outcomes.

RECENT FINDINGS

Studies indicate the ICD-11 domains align with the Five-Factor Model and prior influential models of dimensional personality traits, as expected, and thus rest on an impressive body of empirical research. They also capture large amounts of variance included in the ICD-10/Diagnostic and Statistical Manual of Mental Disorders, 5th Edition Section II personality disorders.

SUMMARY

Together these findings support the construct validity of the ICD-11 trait domains. However, continued validation research is necessary, as well as research on how to implement these domains into clinical practice, and research on the more specific facet-level of the trait domains - although the ICD-11 model is only officially at the domain-level.

Assessing ICD-11 personality trait domain qualifiers with the MMPI-2-RF

OBJECTIVE

The current study examined the utility of the Minnesota Multiphasic Personality Inventory-2-Restructured Form (MMPI-2-RF) in assessing ICD-11 personality psychopathology trait domain qualifiers.

METHOD

Using a community sample (N = 217) weighted for externalizing dysfunction, this study evaluated the convergence between ICD-11 trait domains as measured by the personality inventory for DSM-5 (PID-5) with hypothesized MMPI-2-RF scales. Particular emphasis was placed on evaluating the convergence between the ICD-11 trait domain qualifiers and the MMPI-2-RF personality psychopathology-5 (PSY-5) scales, as the latter are meant to represent broadband domains of personality pathology.

RESULTS

Correlation and regression analyses demonstrated expected associations between ICD-11 domains and conceptually expected MMPI-2-RF scales, with some minor exceptions. Notably, the Anankastia domain showed associations with scales assessing negative affect, but did not show expected negative associations with scales related to disinhibition.

CONCLUSIONS

The findings generally supported the use of the MMPI-2-RF in assessing individual expressions of personality dysfunction from the ICD-11 trait domain qualifier perspective.

Arabic Version of the Personality Inventory for the DSM-5 (PID-5) in a Community Sample of United Arab Emirates Nationals

Background:

Section III of the Diagnostic and Statistical Manual of Mental Disorders (DSM-5) proposes a model for conceptualizing personality disorders in which they are characterized by impairments in personality functioning and maladaptive personality traits. The Personality Inventory for DSM-5 (PID-5) is a self-report measure that assesses the presence and severity of these maladaptive personality traits.

Objective:

The current study examined the reliability and validity of the Arabic version of the Personality Inventory for DSM-5 (PID-5) to measure maladaptive personality traits in the Emirati population of the United Arab Emirates.

Methods:

The Arabic version of the PID-5 was administered to a community sample of 1,090 United Arab Emirates nationals (89.5% female and 10.5% male, mean age = 22.44 years old). The descriptive measures, internal consistency, test-retest reliability, convergent validity with NEO – Five Factor Inventory, as well as PID-5’s factor structure, were all addressed.

Results:

The PID-5facets and domains mean scores were higher in the Emirati sample compared to the original US sample. Internal consistency of the PID-5 scales was acceptable to high and test-retest coefficients ranged from 0.84 (facets) to 0.87 (domains). As expected, the five domains of the Arabic version of the PID-5 correlated significantly with all Five-Factor Model domains of personality. Additionally, the Arabic version of the PID-5 confirmed a five-factor structure that resembles the PID-5 domains.

Conclusion:

The findings of this study provided initial support for the use of the Arabic version of the PID-5 to assess maladaptive personality traits in the Emirati population of the United Arab Emirates.

Prevalence and structure of self-other problems in SAPAS screening for personality disorder in a National Sample

AIM

This study investigated the prevalence and factorial structure of personality disorder features in the general community measured with the self-report form of the Standardized Assessment of Personality - Abbreviated Scale (SAPAS-SR).

METHOD

SAPAS-SR was administered to a Danish national community sample (N = 50,326; 53% women). The hierarchical latent structure was examined using exploratory factor analyses (EFA) for one to three levels.

RESULTS

We found that 11.3% of the community sample fulfilled the estimated screening criteria for a personality disorder, which was slightly higher for woman and younger people. As hypothesized, a two-factor model corresponded to aspects of self (e.g., being a worrier) and others (e.g., having difficulty making and keeping friends), whereas a three-factor model corresponded to trait domains of negative affectivity, detachment, and externalization.

CONCLUSION

These findings suggest that personality disorder features play a significant role for at least one out of ten individuals in the Danish general community. Such features are primarily organized in a pattern of self- and interpersonal functioning, which is consistent with the conceptualization of core personality dysfunction in the DSM-5 Alternative Model of Personality Disorders and the ICD-11 Classification of Personality Disorders. © 2019 John Wiley & Sons, Ltd.

Patient-Reported ICD-11 Personality Disorder Severity and DSM-5 Level of Personality Functioning

This study evaluated the Standardized Assessment of Severity of Personality Disorder (SASPD) proposed for ICD-11 and the Level of Personality Functioning Scale-Brief Form 2.0 (LPFS-BF) developed for DSM-5 Section III and their relationships with external correlates. We used a clinical sample (N = 150; 33% women) of 65 psychiatric outpatients and 85 incarcerated addicts, who self-reported the SASPD and the LPFS-BF. We conducted correlation and regression analyses in order to determine the relative associations of these two measures with relevant external criteria. SASPD predominantly captured externalizing and other-related problems (e.g., potential harm to others), whereas LPFS-BF predominantly captured internalizing and self-related problems (e.g., identity and distress). Generally, LPFS-BF explained more variance of the external criteria relative to SASPD. The findings seem to reflect that the ICD-11 oriented SASPD emphasizes interpersonal and aggressive features, whereas the DSM-5-oriented LPFS-BF emphasizes self-pathology and distress. More conclusive findings warrant interview-rated personality functioning.

Why we need to take personality disorder out of the doghouse

The diagnosis of personality disorder is sometimes tolerated but often reviled as a label to attach to people we do not like. This is hardly surprising when we consider that problems in interpersonal relationships constitute the main feature of the disorder. But we cannot escape the fact that personality problems are extremely common and rejection on grounds of perceived undesirability is doltish. Both the DSM-5 (2013) alternative model and new ICD-11 classification of personality may help understanding as they are more in tune with science. Most of the previous classifications have failed to help practitioners or patients.

A Brief but Comprehensive Review of Research on the Alternative DSM-5 Model for Personality Disorders

PURPOSE OF REVIEW

Both the Alternative DSM-5 Model for Personality Disorders (AMPD) and the chapter on personality disorders (PD) in the recent version of ICD-11 embody a shift from a categorical to a dimensional paradigm for the classification of PD. We describe these new models, summarize available measures, and provide a comprehensive review of research on the AMPD.

RECENT FINDINGS

A total of 237 publications on severity (criterion A) and maladaptive traits (criterion B) of the AMPD indicate (a) acceptable interrater reliability, (b) largely consistent latent structures, (c) substantial convergence with a range of theoretically and clinically relevant external measures, and (d) some evidence for incremental validity when controlling for categorical PD diagnoses. However, measures of criterion A and B are highly correlated, which poses conceptual challenges. The AMPD has stimulated extensive research with promising findings. We highlight open questions and provide recommendations for future research.

The Portuguese version of the Personality Inventory for the DSM-5 in a community and a clinical sample

The Personality Inventory for DSM-5 (PID-5) measures the maladaptive traits of the model for personality and its disorders, as proposed in section III of the DSM-5. The current study aimed to examine whether the Portuguese PID-5 distinguished non-clinical participants (N = 1223, M_age  = 36.73, standard deviation = 15.72) from clinical participants (N = 202, M_age  = 43.82, standard deviation = 11.33) with respect to dysfunctional personality traits and to explore the PID-5 factor structure in both samples. The PID-5 scale medians were higher in the clinical sample than in the community sample. All analyses were statistically significant (p ≤ 0.001) with medium size effects. In the community sample, a five-factor structure emerged, and the factors resembled the PID-5 domains. However, in the clinical sample, a four-factor structure was retained, in which the Psychoticism domain did not clearly emerge. The composition of the clinical sample along with its small size may account for these unexpected results. Overall, the results provide evidence of the PID-5's ability to distinguish between psychiatric and community individuals and of the model's structural similarity in community samples, across studies and nationalities. More research is required to understand the Portuguese PID-5 structure in clinical samples. © 2018 John Wiley & Sons, Ltd.

The Development of the ICD-11 Classification of Personality Disorders: An Amalgam of Science, Pragmatism, and Politics

The nomenclature of personality disorders in the 11th revision of the International Classification of Diseases and Related Health Problems represents the most radical change in the classification history of personality disorders. A dimensional structure now replaces categorical description. It was argued by the Working Group that only a dimensional system was consistent with the empirical evidence and, in the spirit of clinical utility, the new system is based on two steps. The first step is to assign one of five levels of severity, and the second step is to assign up to five prominent domain traits. There was resistance to this structure from those who feel that categorical diagnosis, particularly of borderline personality disorder, should be retained. After lengthy discussion, described in detail here, there is now an option for a borderline pattern descriptor to be selected as a diagnostic option after severity has been determined.

Schema therapy conceptualization of personality functioning and traits in ICD-11 and DSM-5

PURPOSE OF REVIEW

Schema therapy conceptualizes personality disorders in terms of modes and underlying schemas. This article reviews the literature on schema therapy conceptualization of personality disorder functioning and traits, and proposes how these findings apply to novel personality disorder classification in ICD-11 and the DSM-5 Alternative Model of Personality Disorders (AMPD).

RECENT FINDINGS

Maladaptive schemas and modes are generally associated with personality dysfunction and traits in conceptually coherent ways. The healthy adult mode, a transdiagnostic core concept in schema therapy, corresponds to the ICD-11 and DSM-5-AMPD features of core personality functioning. Modes and underlying schemas substantially overlap with specific ICD-11 and DSM-5-AMPD traits, which denote individual themes and styles of personality dysfunction.

SUMMARY

The dimensional personality disorder framework in ICD-11 and DSM-5-AMPD is largely compatible with the schema therapy model. The ICD-11 and DSM-5-AMPD provide a scientifically derived and theory-free framework for all practitioners, which may be connected to clinical theory of schema therapy in a coherent manner. Level of personality functioning can be conceptualized as healthy adult functioning (e.g. sense of identity, self-worth, emotion regulation, intimacy, and fulfillment), which inform intensity of treatment. Trait qualifiers can be conceptualized by associated modes (e.g., compliant surrender) and underlying schemas (e.g. abandonment), which inform focus and style of treatment.

Application of the ICD-11 classification of personality disorders

BACKGROUND

The ICD-11 classification of Personality Disorders focuses on core personality dysfunction, while allowing the practitioner to classify three levels of severity (Mild Personality Disorder, Moderate Personality Disorder, and Severe Personality Disorder) and the option of specifying one or more prominent trait domain qualifiers (Negative Affectivity, Detachment, Disinhibition, Dissociality, and Anankastia). Additionally, the practitioner is also allowed to specify a Borderline Pattern qualifier. This article presents how the ICD-11 Personality Disorder classification may be applied in clinical practice using five brief cases.

CASE PRESENTATION

(1) a 29-year-old woman with Severe Personality Disorder, Borderline Pattern, and prominent traits of Negative Affectivity, Disinhibition, and Dissociality; (2) a 36-year-old man with Mild Personality Disorder, and prominent traits of Negative Affectivity and Detachment; (3) a 26-year-old man with Severe Personality Disorder, and prominent traits of Dissociality, Disinhibition, and Detachment; (4) a 19-year-old woman with Personality Difficulty, and prominent traits of Negative Affectivity and Anankastia; (5) a 53-year-old man with Moderate Personality Disorder, and prominent traits of Anankastia and Dissociality.

CONCLUSIONS

The ICD-11 Personality Disorder classification was applicable to five clinical cases, which were classified according to Personaity Disorder severity and trait domain qualifiers. We propose that the classification of severity may help inform clinical prognosis and intensity of treatment, whereas the coding of trait qualifiers may help inform the focus and style of treatment. Empirical investigation of such important aspects of clinical utility are warranted.